[llvm] [GlobalISel] Add iterative known-bits evaluation to GISelValueTracking (PR #221755)

[via llvm-commits]

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@@ -1138,6 +1138,77 @@ void GISelValueTracking::computeKnownBitsImpl(Register R, KnownBits &Known,
   LLVM_DEBUG(dumpResult(MI, Known, Depth));
 }
 
+static void genUnknown(MachineRegisterInfo &MRI, const Register &Reg,
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daemonpilot wrote:

Good point, fixed. Thanks!

https://github.com/llvm/llvm-project/pull/221755